simple while loop

Bjarne Stroustrup “Programming Principles and Practice Using C++”
Chapter 4 Drill 1
Using std_lib_facilities.h by Bjarne Stroustrup.

[code language=”cpp”]
// Philipp Siedler
// Bjarne Stroustrup’s PP
// Chapter 4 Drill 1

#include "std_lib_facilities.h"

int main()
{
cout << "type in two integers or a ‘|’ to terminate the program:\n";
int x1;
int x2;

while (cin >> x1 >> x2)
{
if (x1 == ‘|’)
{
keep_window_open(".");
}
else
cout << x1 << ", " << x2 << "\n";
}

keep_window_open(".");
}
[/code]

Output:
type in two integers or a '|' to terminate the program:
2 3
2, 3

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